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WO2012108957A1 - Ensemble de perfusion d'insuline - Google Patents

Ensemble de perfusion d'insuline Download PDF

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Publication number
WO2012108957A1
WO2012108957A1 PCT/US2012/000071 US2012000071W WO2012108957A1 WO 2012108957 A1 WO2012108957 A1 WO 2012108957A1 US 2012000071 W US2012000071 W US 2012000071W WO 2012108957 A1 WO2012108957 A1 WO 2012108957A1
Authority
WO
WIPO (PCT)
Prior art keywords
base
housing
septum
infusion set
latching device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/US2012/000071
Other languages
English (en)
Inventor
Ralph Sonderegger
Victor POLITIS
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Becton Dickinson and Co
Original Assignee
Becton Dickinson and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Becton Dickinson and Co filed Critical Becton Dickinson and Co
Priority to EP18183878.0A priority Critical patent/EP3421065B1/fr
Priority to JP2013553433A priority patent/JP6049640B2/ja
Priority to CN201290000358.9U priority patent/CN203634634U/zh
Priority to ES12745304T priority patent/ES2916774T3/es
Priority to US13/984,025 priority patent/US10105484B2/en
Priority to CA2826798A priority patent/CA2826798C/fr
Priority to EP12745304.1A priority patent/EP2673040B1/fr
Publication of WO2012108957A1 publication Critical patent/WO2012108957A1/fr
Anticipated expiration legal-status Critical
Priority to US16/141,131 priority patent/US20190022308A1/en
Ceased legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
    • A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
    • A61M5/14—Infusion devices, e.g. infusing by gravity; Blood infusion; Accessories therefor
    • A61M5/158—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body
    • A61M2005/1587—Needles for infusions; Accessories therefor, e.g. for inserting infusion needles, or for holding them on the body suitable for being connected to an infusion line after insertion into a patient

Definitions

  • the present invention relates generally to infusion sets that can be inserted and attached to the skin using commercially available inserter devices.
  • the first mode includes syringes and insulin pens. These devices are simple to use and are relatively low in cost, but they require a needle stick at each injection, typically three to four times per day.
  • the second mode includes insulin infusion therapy, which utilizes an insulin pump. Infusion pumps, although more complex and expensive than syringes and pens, offer the advantages of continuous infusion of insulin via an infusion cannula, precision dosing, and programmable delivery schedules.
  • an infusion pump requires the use of a disposable component, typically referred to as an infusion set, line set, extension set or pump set, which conveys the insulin from a reservoir within the pump into the skin of the
  • An infusion set typically consists of a pump connector, a length of tubing, and a hub or base from which an infusion cannula (i.e., an infusion needle or a flexible catheter) extends.
  • the hub or base has an adhesive which retains the base on the skin surface during use, and which may be applied to the skin manually or with the aid of a manual or automatic insertion device.
  • a detachable fluid connector is provided to allow the pump tubing to be
  • Some infusion sets are complex in design and do not allow for adequate user mobility or for quick and simple methods to connect and disconnect the fluid connector from the base after the base has been attached to a user, while preventing external exposure of the inserted infusion cannula.
  • An object of the present invention is to provide an infusion set that provides increased mobility for the user.
  • Another object of the present invention is to provide an infusion set that includes components that are able to self-close to prevent exposure of the infusion cannula.
  • Another object of the present invention is to provide a fluid path that is formed in an infusion set during use, with the fluid path being closed when the infusion set is not used.
  • FIG. 1 is an enlarged perspective view of an exemplary infusion set connected to a tubeset
  • FIG. 2 is an enlarged cross-sectional view of the exemplary infusion set latched to a base
  • FIG. 3 is an enlarged cross-sectional view of the exemplary infusion set unlatched from a base
  • FIG. 4 is an enlarged perspective view of the exemplary infusion set illustrating a latched state
  • FIG. 5 is an enlarged perspective view of the exemplary infusion set illustrating an unlatched state
  • Fig. 6A is an enlarged cross-sectional view of the exemplary infusion set taken along a length of the tubeset receiver;
  • Fig. 6B is a cross-sectional view of a part of the infusion set without the introducer needle
  • Fig. 6C is a cross-sectional view of a part of the infusion set of Fig. 6B after the housing has been removed from the base;
  • Fig. 7A is a perspective view of an introducer needle hub that is compatible with the exemplary infusion set
  • Fig. 7B is a cross-sectional view of the introducer needle hub of Fig. 7A;
  • FIG. 8A is a perspective view of another exemplary infusion set
  • Fig. 8B is a perspective view of the housing or hub of the exemplary infusion set of Fig. 8A;
  • Fig. 9 is a cross-sectional view of the exemplary infusion set of Fig. 8A, illustrated with the housing attached to the base;
  • Fig. 10A is a top view of the housing of the infusion set of Fig. 8A,
  • Fig. 10B is a top view of the base of the infusion set of Fig. 8A; and [0027] Fig. 11 is a cross-sectional view of the exemplary infusion set of Fig. 8A, illustrated with the housing detached from the base.
  • FIG. 1 An exemplary embodiment of a flexible catheter-type infusion set 30 in accordance with the present invention is illustrated in Fig. 1.
  • the infusion set is intended to be connected to an infusion pump, for the delivery of insulin or other medicament.
  • the infusion set may be used with existing commercial inserters, such as the Medtronic Quick-serter® device, with little or no modification.
  • Fig. 1 illustrates a needle hub 40 that is positioned above an extension set 50, and a base 90 that is positioned below the extension set 50. Also illustrated is an adhesive pad 96 that is attached to an outer surface of the base 90. The adhesive pad 96 is configured to be attachable to a user. Also illustrated is a tube set or extension tube 60 that connects to the extension set 50. The connector 62 of the extension tube 60 connects to an infusion pump (not shown) such that medication such as insulin from the pump is delivered to the extension set 50.
  • the extension set 50 includes a housing 70.
  • a button 80 is housed in the housing 70, as illustrated in Fig. 2.
  • the button 80 when pressed, actuates a keyhole slot latching device 82.
  • FIG. 2 illustrates an exemplary embodiment of the present invention which shows a button latching configuration of the extension set 50, in which the housing 70, including the button 80, is latched onto the base 90.
  • the button 80 is connected to a keyhole slot latching device 82 that engages the base retention boss 92 of the base 90, during the infusion state, to latch the housing 70 to the base 90.
  • the boss 92 is mushroom-shaped and includes a cap portion 93 and a stem portion 95.
  • the keyhole slot latching device 82 When the keyhole slot latching device 82 is slotted between the cap 93 and the base 90 adjacent the stem portion 95, the housing 70 is latched onto the base 90, as illustrated in Fig. 2.
  • the keyhole slot latching device 82 may frictionally engage one or more of the cap portion 93, stem portion 95 and a portion of the base 90 adjacent to the stem portion 95, in the latched state, as illustrated in Fig. 2.
  • the needle hub 40 is removed from the housing 70 after attaching a flexible catheter 42 to the user. Thereafter, when a user wishes to remove the extension set 50 from the base 90 that holds the catheter 42, the user presses the button 80 (shown in Figs. 2-5) to unlatch the housing 70 from the retention boss 92, by actuating the keyhole slot latching device 82 to move from a latched position (see Figs. 2 and 4) to an unlatched position (see Figs. 3 and 5). In the unlatched state, the keyhole slot latching device 82 disengages from the slot position below the cap portion 93 and adjacent to the stem portion 95 of the retention boss 92, as illustrated in Figs. 3 and 5.
  • the user presses the button 80, in the latched state (see Fig. 2), so that the button moves to a position shown in Fig. 3, wherein the keyhole slot latching mechanism 82 becomes disengaged from its slot position below the cap portion 93 and adjacent to the stem portion 95, whereupon the extension set 50 may be separated from the base 90.
  • the button 80 is shown with greater clarity in Figs. 4 and 5, which depicts one configuration of a latching device, namely the keyhole slot latching device 82, with the base 90 illustrated as being transparent solely for visual clarity.
  • the base 90 need not, in reality, be transparent as illustrated in the Figs. 4 and 5.
  • an integrally molded set of plastic leaf springs 84 is actuated by the pressed button 80, to change from the latched state (Figs. 2 and 4) to the unlatched state (Figs. 3 and 5).
  • the open ends of the leaf springs 84 are held in position by indents 86 that are positioned in the housing 70, as illustrated in Fig. 4.
  • the leaf springs 84 disengage from the indents 86, as illustrated in Fig. 5.
  • Figs. 3 and 5 show the button 80 in the unlatched position.
  • the keyhole slot latching device 82 has disengaged from the retention boss 92.
  • the latching and unlatching mechanism illustrated in this embodiment uses a keyhole slot latching device 82 in which a keyhole having a smaller diameter portion and a larger diameter portion is included, wherein when the smaller diameter portion of the keyhole slot latching device 82 engages the retention boss 92, the housing 70 is latched onto the base 90, as illustrated in Fig. 2, wherein the outer wall of the smaller diameter portion of the keyhole slot latching device 82 engages the retention boss 92.
  • the button 80 When the button 80 is pushed, this actuates the disengagement of the housing 70 from the base 90, and as illustrated in Figs. 3 and 5, the retention boss 92 is positioned at a central portion of the larger diameter of the keyhole slot latching device 82, thus disengaging the keyhole latching device 82 from the retention boss 92. This releases the housing 70 from the base 90.
  • Fig. 6A illustrates a fluid path 64 that is formed along the tube set receiver 74 of the housing 70, as well as a pocket between the upper septum 110 and the lower septum 120, completed via an opening 94 in the base 90, a slot in the introducer needle 44, and the extension set tubing 60, enabling fluid to flow from a pump (not shown) attached to the connector 62 of the extension set tubing 60 through the tip 45 of the introducer needle 44, as illustrated in Fig. 6A. This allows the set 50 to be primed with the introducer needle 44 in place.
  • FIGs. 2, 3 and 6A illustrate the position in which the infusion set 30 can be attached to a user, either manually or with the aid of a commercially available or custom-designed inserter device.
  • the introducer needle 44 is removed by manually withdrawing the needle hub 40 from the housing 70.
  • the introducer needle 44 which is secured to the needle hub 40, is pulled through both the upper septum 1 10 and the lower septum 120.
  • the upper septum 1 0 self-closes its opening through which the introducer needle 44 has been removed, but the lower septum 120 remains open due to the presence of a blunt cannula 76 (illustrated in Fig. 6B) that extends from a central wall 72 of the housing 70, into the lower septum 120 in order to keep the lower septum 120 open.
  • a blunt cannula 76 illustrated in Fig. 6B
  • the user receives medication from the pump through the fluid path 64, as shown in Fig. 6B, and out of the tip 43 of the catheter 42. If the user seeks to remove the housing 70 from the base 90, for instance prior to vigorous exercise, taking a shower or bath, or swimming, the user presses the button 80 to release the keyhole slot device 82 from the latched position (see Figs. 2 and 4) to the unlatched position (see Figs. 3 and 5), thereby unlatching the housing 70 from the base 90. The housing 70 can then be detached from the base 90 when the housing 70 is lifted from the base 90, in the same direction as the removal of the needle hub 40 from the housing 70.
  • the blunt cannula that extends from the central wall 72 of the housing 70 into the lower septum 120 is also removed, and thus the lower septum 120 is able to self-close its opening.
  • the lower septum 120 becomes self-closed, preventing an external pathway from being formed into the inserted lumen of the catheter 42, thereby preventing introduction of external pathogens, liquids or gases into the catheter insertion site, as illustrated in Fig. 6C.
  • the septum 120 is preferably provided with a pre-formed slit to facilitate penetration by the blunt cannula 76.
  • the blunt cannula at the central wall 72 of the housing 70 can be capped or covered to prevent external exposure to the disconnected fluid path 64, after the housing 70 has been removed.
  • the base 90 can also be capped or covered with a suitably shaped cap (not shown).
  • the catheter 42 remains attached to the base 90, with the lower septum 20 being self-closed (closing its hole) to prevent external contamination into the catheter 42, after the fluid path 64 has been disconnected by the removal of the housing 70, to which is attached the upper septum 10 (see Fig. 6C).
  • the user After the housing 70 has been detached from the base 90, the user has greater mobility to engage in vigorous exercise, swim, shower or bathe. After such activity has ended and the user wishes to reattach the housing 70 to the base 90, the user generally follows the following procedure.
  • the cap is removed, and the externally exposed outer surface of the lower septum 20 (facing toward the upper septum 110 in Fig. 6A) is sterilized by the user with any one of known methods for sterilization such as an alcohol wipe. If the blunt cannula of the central wall 72 was capped after the detachment of the housing 70 from the base 90, the cap (not shown) is then removed, and if the blunt cannula was not capped, the surface area thereof is also sterilized. Thereafter, the button 80 is pressed to position the housing 70 in the unlatched position, as in Figs. 3 and 5.
  • the housing 70 is then placed directly on the base 90 such that the blunt cannula of the central wall 72 of the housing 70 extends into and opens the closed hole of the lower septum 120, as illustrated in Fig. 6B.
  • the button 80 is then released to latch the housing 70 onto the base 90 at the base retention boss 92, as illustrated in Figs. 2, 4 and 6B.
  • the fluid pathway 64 is reformed from the pump through the tubing 60, and into the housing 70, through the pocket between the upper septum 110 and the lower septum 120, and out through the tip 43 of the catheter 42, as illustrated in Fig. 6B.
  • FIGs. 2-6 illustrate a latching device that includes the button 80 connected to the keyhole slot latching device 82 that is secured onto the housing 70
  • any similar latching and unlatching device can be used to perform the same operation.
  • the embodiment that is illustrated in Figs. 8-1 1 discloses another latching and unlatching device.
  • Figs 7A and 7B illustrate a modified needle hub 40' to which is secured an introducer needle 44'.
  • the needle hub 40' can have an outer diameter, height, inner diameter, and other dimensions such that it can be used with commercially available inserter devices, such as the Medtronic Quick-Set ® inserter.
  • the infusion set 30' of Figs. 8-11 functions substantially in the same manner as extension set 50 of Figs. 1-6, but this embodiment uses a latching mechanism that is different from the keyhole slot latching device 82 and retention boss 92 of Figs. 1-6.
  • This embodiment also has an infusion set 30' that is designed to be used with a commercially available insertion device such as the Medtronic Quick-serter® insertion device.
  • the infusion set 30' includes a housing or hub 70' that latches on to a base 90'.
  • a release mechanism for disconnecting the hub 70' from the base 90' is integrated into the hub 70' and base 90', rather than being an extra component therein.
  • the release mechanism includes a pair of levers 78, each having an arm 79.
  • the levers 78 are hinged to the hub 70' and the levers 78 can be biased to manipulate the position of the arms 79.
  • the base 90' includes radially positioned catches 97 that form pockets 98.
  • the arms 79 of the levers 78 fit into the pockets 98 and interlock with the catches 97 in order to secure the hub 70' to the base 90', at one of six radial positions corresponding to each of the pockets 98.
  • the user squeezes or biases the levers 78 of the hub 70', to position the arms 79 out of the pockets 98 of the base 90'. Thereafter, the user can lift the hub 70' from the base 90', to separate the two elements, as illustrated in Fig. 11.
  • FIG. 10A illustrates a top view of the hub 70' that can attach and detach to and from the base 90' of Fig. 10B.
  • Fig. 106 there are six distinct rotational positions that the hub 70' can attach to the base 90', corresponding to each of the pockets 98 that the user can select. Such selection will determine at what angle the hub 70' will be oriented when attached to the base 90', and hence the direction in which the connected tubing (not shown) extends.
  • the increment of rotation that is available is 60 degrees.
  • the number of pockets 98 with corresponding catches 97 will determine the rotational positions of the hub 70' vis-a-vis the base 90'.
  • the cylindrical septum 110' is preferably cylindrical in shape and parallel with the tube set receiver 74'.
  • the septum 1 0' provides a seal where the introducer needle 44' is placed, while permitting flow from the tubeset receiver 74 to the blunt cannula 76 and the catheter 42'.
  • the base 90' includes an adhesive pad 96' for attaching the base 90' to the user, as illustrated in Figs. 8- 1.
  • An advantage of this embodiment is that the release mechanism is integral to the hub 70' and base 90' and facilitates a tower profile due to fewer components.
  • the squeeze action or biasing of the levers 78 is user-friendly and intuitive.
  • the integrated release mechanism is reliable since there are fewer assembly tolerances to consider, as compared with other latching mechanisms.

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  • Health & Medical Sciences (AREA)
  • Vascular Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Anesthesiology (AREA)
  • Biomedical Technology (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Hematology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)

Abstract

L'invention porte sur un ensemble de perfusion (30) d'insuline destiné à être utilisé avec un dispositif d'introduction (40). L'ensemble de perfusion (30) comprend un ensemble d'extension (50). L'ensemble d'extension (50) comprend un boîtier (70), une base (90) et un dispositif de verrouillage (82). La base (90) contient une cloison de base (120) et une canule de perfusion (42). Le dispositif de verrouillage (82) fixe de manière amovible le boîtier (70) à la base. Lorsque le boîtier (70) est fixé à la base (90), une partie du boîtier (70) s'étend dans la cloison de base (120) et l'ouvre.
PCT/US2012/000071 2011-02-09 2012-02-08 Ensemble de perfusion d'insuline Ceased WO2012108957A1 (fr)

Priority Applications (8)

Application Number Priority Date Filing Date Title
EP18183878.0A EP3421065B1 (fr) 2011-02-09 2012-02-08 Ensemble de perfusion d'insuline
JP2013553433A JP6049640B2 (ja) 2011-02-09 2012-02-08 インシュリン注入セット
CN201290000358.9U CN203634634U (zh) 2011-02-09 2012-02-08 注入套具和闩锁装置
ES12745304T ES2916774T3 (es) 2011-02-09 2012-02-08 Conjunto de infusión de insulina
US13/984,025 US10105484B2 (en) 2011-02-09 2012-02-08 Insulin infusion set
CA2826798A CA2826798C (fr) 2011-02-09 2012-02-08 Ensemble de perfusion d'insuline
EP12745304.1A EP2673040B1 (fr) 2011-02-09 2012-02-08 Ensemble de perfusion d'insuline
US16/141,131 US20190022308A1 (en) 2011-02-09 2018-09-25 Insulin Infusion Set

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201161441261P 2011-02-09 2011-02-09
US61/441,261 2011-02-09

Related Child Applications (2)

Application Number Title Priority Date Filing Date
US13/984,025 A-371-Of-International US10105484B2 (en) 2011-02-09 2012-02-08 Insulin infusion set
US16/141,131 Division US20190022308A1 (en) 2011-02-09 2018-09-25 Insulin Infusion Set

Publications (1)

Publication Number Publication Date
WO2012108957A1 true WO2012108957A1 (fr) 2012-08-16

Family

ID=46638891

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2012/000071 Ceased WO2012108957A1 (fr) 2011-02-09 2012-02-08 Ensemble de perfusion d'insuline

Country Status (7)

Country Link
US (2) US10105484B2 (fr)
EP (2) EP2673040B1 (fr)
JP (1) JP6049640B2 (fr)
CN (1) CN203634634U (fr)
CA (2) CA2826798C (fr)
ES (2) ES2916774T3 (fr)
WO (1) WO2012108957A1 (fr)

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US10105484B2 (en) 2018-10-23
CN203634634U (zh) 2014-06-11
US20140074033A1 (en) 2014-03-13
JP6049640B2 (ja) 2016-12-27
EP2673040B1 (fr) 2022-03-30
EP2673040A4 (fr) 2018-01-24
ES2817434T3 (es) 2021-04-07
US20190022308A1 (en) 2019-01-24
CA3040486A1 (fr) 2012-08-16
CA2826798C (fr) 2019-06-04
ES2916774T3 (es) 2022-07-05
CA2826798A1 (fr) 2012-08-16
EP2673040A1 (fr) 2013-12-18
JP2014510572A (ja) 2014-05-01
EP3421065B1 (fr) 2020-07-08
EP3421065A1 (fr) 2019-01-02

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